Behind the Bastards
Behind the Bastards

Part Three: Francis Galton: Inventor of Eugenics

September 15, 2026

AI Summary

5 min read

In 1865, Francis Galton wrote that the physical structure of future generations was “almost as plastic as clay, under the control of the breeder’s will.” He believed mental qualities were equally controllable. This was the founding vision of eugenics, a pseudoscience Galton invented and spent the rest of his life trying to turn into law. By the 1870s, he had coined the term “nature versus nurture,” but his actual research consistently ignored the “nurture” side of the equation, even when his own data contradicted him. This episode of Behind the Bastards traces Galton’s middle and late career, showing how his obsession with class, race, and measurement shaped an ideology that would go on to cause immense harm.

The Nature-Nurture Question That Wasn't

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What you'll learn

  • 1 (03:14) **Galton's Post-1870s Eugenics Crusade** - After inventing the term "eugenics," Galton shifts from academic work to active advocacy, pushing for laws and social schemes based on his ideas.
  • 2 (12:04) **The Scientific Priest vs. His Critics** - Galton and Darwin believe nurture is meaningless, while co-discoverer of evolution Alfred Russel Wallace argues that improving people's environment is the real path to human progress.
  • 3 (15:13) **The Core Audience: Rich White Men** - Galton's eugenics is a direct appeal to his own class, assuring them that they are the pinnacle of humanity and that all other peoples and cultures should be extinguished or bred out of existence.
  • 4 (21:20) **Modern Echoes in Effective Altruism** - The hosts connect Galton's logic directly to modern Effective Altruism (EA) spaces, where a 2023 forum post argues that "most people endorse some form of eugenics."
  • 5 (32:24) **Nick Bostrom and the IQ Obsession** - The hosts highlight philosopher Nick Bostrom, a major EA figure, who was revealed to have written in a 1996 email that "blacks are more stupid than whites," making the same argument Galton did using IQ as the sole measure of value.
  • 6 (34:04) **Galton's Fluid Concept of Race** - The episode explores how Galton used "race" in three different ways: as a literary term (e.g., "poets are a sensuous race"), a taxonomic term, and finally as a synonym for "heredity" itself, showing his ideas were built on a fundamentally unscientific foundation.
  • 7 (38:17) **The Fear of "Smart Genocide"** - In the 1870s-80s, Galton's focus shifts from colonies to England's urban poor, whom he sees as a threat to the genetic quality of the "race," fearing that welfare programs are breaking natural selection by allowing the "weakly and incapable" to breed more than the "eminent."

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Show Notes